<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns:app="http://www.opengis.net/app" xmlns:gml="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.opengis.net/app" elementFormDefault="qualified" version="2.06 2010-01-28">
    <!-- When packaged in jpx file the import statements will be replaced by the following
	<import namespace="http://www.opengis.net/gml" schemaLocation="gmljp2://xml/gmlJP2Profile.xsd"/>
	<import namespace="http://www.opengis.net/xima" schemaLocation="gmljp2://xml/landsat7Annotation.xsd"/>
    -->
    <import namespace="http://www.opengis.net/gml" schemaLocation="../../../gml/3.1.1/profiles/gmlJP2Profile/1.0.0/gmlJP2Profile.xsd"/>
    <import namespace="http://www.opengis.net/xima" schemaLocation="landsat7Annotation.xsd"/>
    <!-- ==============================================================
      global declarations
 	=================================================================== -->
    <element name="Landsat7Coverage" type="app:Landsat7CoverageType" substitutionGroup="gml:_Coverage"/>
    <!-- ==============================================================-->
    <complexType name="Landsat7CoverageType">
        <annotation>
            <documentation>Landsat7 was launched in 1999. It contains seven spectral bands andpanchromatic band wide swath width (185 km) with 15-meter, 30-meter, 60-meter, and 80-meter . It has a 705km sun-synchronous orbit with a 16 day repeat cycle and contains a nadir-pointing instrument (ETM+ sensor). 
                ETM+ data were compiled through NASA's Commercial Remote Sensing Program; this program is cooperative effort between NASA and the commercial remote sensing community to provide with access to quality-screened, high-resolution satellite images with global over the Earth's land masses. The resulting Landsat Enhanced Thematic Mapper (ETM+) data set contains orthorectified ETM+ sensor data from the Landsat-7 satellite. the ETM+ images most closely meeting a specific set of criteria, including acquisition , cloud percentage, data quality parameters, and best available phenology, were for the collection. The Landsat ETM+ data were provided by the USGS and through a NASA contract with Earth Satellite Corporation, Rockville, , and are part of NASA's Scientific Data Purchase program, developed in response the President's Space Policy.
            </documentation>
        </annotation>
        <complexContent>
            <restriction base="gml:RectifiedGridCoverageType">
                <sequence>
                    <group ref="gml:StandardObjectProperties"/>
                    <element ref="gml:boundedBy" minOccurs="0"/>
                    <element ref="gml:rectifiedGridDomain"/>
                    <element ref="app:rangeSet"/>
                    <element ref="gml:coverageFunction" minOccurs="0"/>
                </sequence>
            </restriction>
        </complexContent>
    </complexType>
    <!-- =========================================================== -->
    <element name="rangeSet" type="app:FileRangeSetType" substitutionGroup="gml:rangeSet"/>
    <!-- =========================================================== -->
    <complexType name="FileRangeSetType">
        <complexContent>
            <restriction base="gml:RangeSetType">
                <sequence>
                    <element ref="app:File"/>
                </sequence>
            </restriction>
        </complexContent>
    </complexType>
    <!-- =========================================================== -->
    <element name="File" substitutionGroup="gml:File">
        <complexType>
            <complexContent>
                <extension base="gml:FileType">
                    <sequence>
                        <element name="fileDate" type="date" minOccurs="0"/>
                        <element name="fileFormat" type="string" fixed="geoTIFF" minOccurs="0"/>
                        <element name="spatialResolution" type="gml:MeasureType"/>
                        <element name="spectrum" type="app:SpectralResolutionEnumeration"/>
                        <element name="bandRange" type="gml:MeasureListType" maxOccurs="5"/>
                    </sequence>
                </extension>
            </complexContent>
        </complexType>
    </element>
    <!-- ==============================================================-->
    <simpleType name="SpectralResolutionEnumeration">
        <annotation>
            <documentation>Spectral Resolution (�), Band Spatial Resolution  
                Band 1: 0.450 - 0.515 (Blue), 30 meters
                Band 2: 0.525 - 0.605 (Green), 30 meters
                Band 3: 0.630 - 0.690 (Red), 30 meters
                Band 4: 0.760 - 0.900 (Near IR), 30 meters
                Band 5: 1.550 - 1.750 (Mid IR), 30 meters
                Band 6: 10.40 - 12.5 (Thermal), 60 meters
                Band 7: 2.080 - 2.35 (Mid IR), 30 meters
                Band 8: 0.52 - 0.92 (Panchromatic), 15 meters
            </documentation>
        </annotation>
        <restriction base="string">
            <enumeration value="Panchromatic"/>
            <enumeration value="Panchromatic sharpened"/>
            <enumeration value="Multispectral"/>
        </restriction>
    </simpleType>
    <!-- ==============================================================-->
    <element name="PixelValue8bit" type="gml:integerOrNullList" substitutionGroup="gml:CountList">
        <annotation>
            <documentation>
                GeoTIFF image data is delivered as an 8-bit string of unsigned integers.</documentation>
        </annotation>
    </element>
    <!-- =========================================================== -->
    <element name="ImageMetadata" type="app:ImageMetadataType" substitutionGroup="gml:_MetaData"/>
    <!-- =========================================================== -->
    <complexType name="ImageMetadataType" mixed="true">
        <annotation>
            <documentation>Landsat7 was launched in 1999. It contains seven spectral bands andpanchromatic band wide swath width (185 km) with 15-meter, 30-meter, 60-meter, and 80-meter . It has a 705km sun-synchronous orbit with a 16 day repeat cycle and contains a nadir-pointing instrument (ETM+ sensor).
            </documentation>
        </annotation>
        <complexContent mixed="true">
            <extension base="gml:AbstractMetaDataType">
                <sequence>
                    <element name="SUN_AZIMUTH" type="gml:MeasureType" minOccurs="0"/>
                    <element name="SUN_ELEVATION" type="gml:MeasureType" minOccurs="0"/>
                    <element name="QA_PERCENT_MISSING_DATA" type="gml:MeasureType" minOccurs="0"/>
                    <element name="CLOUD_COVER" type="gml:MeasureType" minOccurs="0"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <!-- ==============================================================-->
</schema>
